Brookhaven, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brookhaven, a borough in Delaware County, Pennsylvania.
Today
77°F
Partly Sunny
Partly sunny, with a high near 77. East wind 5 to 10 mph.
7-day forecast for Brookhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Partly Sunny | 5 to 10 mph E | 2% |
| Tonight | 62°F | Mostly Cloudy | 5 mph E | 11% |
| Sunday | 77°F | Rain Showers Likely | 5 to 10 mph SE | 57% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 74% |
| Monday | 70°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Monday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 36% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 42% |
| Tuesday Night | 53°F | Chance Rain Showers | 10 mph NE | 40% |
| Wednesday | 64°F | Chance Rain Showers | 15 mph NE | 32% |
| Wednesday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Thursday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Thursday Night | 53°F | Chance Rain Showers | 10 mph N | 33% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 28% |
| Friday Night | 53°F | Slight Chance Rain Showers | 5 to 10 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Brookhaven (39.871, -75.391). Updated through the day.
Growing snapshot for Brookhaven
Last spring frost
Mar 30
First fall frost
Nov 16
Growing season
230 days
Hardiness zone
7b
More local growing data for Brookhaven: nearby ZIP 19015 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Marcus Hook, Pa (3.5 mi from Brookhaven). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.